SwissMicros Calculator Forum

Actually, FUNC makes sense in a 4STK environment but much less so in NSTK, except to make cleanup (and LASTX restore) unnecessary. I have only needed NSTK once, I think, but didn't use FUNC (which I actually believed to work the way you're going to change it to, so I'm 100% pro ;-) BTW what with rou...

Hello Walter, I can help. 00 { 52-Byte Prgm } 01▸LBL "II" 02 MVAR "r" 03 1ᴇ-5 04 STO "ACC" 05 CLX 06 STO "LLIM" 07 PI 08 STO "ULIM" 09 RCL× "r" 10 STO+ ST X 11 STO "x" 12 PGMINT "J1" 13 INTEG "t" 14 PI 15 STO+ ...

Older HPs (the 41, and its emulator DM-41X) also show the problem for SIN(x) for x close to PI; eg. PI SIN (in RAD mode of course..) returns -4.1E-10 on a 41. I'm not sure which model was first, but certainly the 42S and its faithful simulator Free42 (and thus, the DM42) get it right, the latter eve...

This final link is an excellent solver that Valentín Albillo wrote for the HP-35s. It not only provides results for both real and complex roots, the user only has to provide a single initial guess. In algorithmic terms its efficient, but the sluggish 35s processor doesn't show off the algorithm at ...

Yes, incredibly after all these years!

do:
2
ENTER
NEWMAT
EDIT
55
ENTER
DELR
44
X<>Y

it shows 55 on the 42S and 0 on the simulators(Free42, Plus42, DM42)
DELR should disable stack lift, in other words.

Cheers, Werner

Confirmed, and Free42 (iOS v3.0.17) behaves the same way.
Thankfully, you didn't know about the CLKEYS command or you would never have found this

Cheers, Werner

HEPROOM is expressed in registers, not words. From the same manual: 'A data file is a collection of HEPAX data registers. Each register will hold one number or 6 characters of text – just like a main memory data register. Recall that one register in main memory is seven bytes = 7 x 8 bits = 56 bits....

DavidM wrote: ↑

Tue Dec 27, 2022 4:27 pm

The single element doesn't have to be encapsulated in a list for that to work.

Unless it is a list itself..
Cheers, Werner

Of course, the infinite stack is also a part of Free42, and is already in the DM42 as well. You have to enable it in the settings first (Dynamic Stack Extension), otherwise you don't get the NSTK/4STK commands.
Werner

Not mentioned before, but something *I*'d like to see: a DM71
Simulation (Free71, in which case it can be a portrait model ) or emulation, regardless.

Cheers, Werner